Tuck-marker for sewing-machines.



No. 882,255. PATENTED MAR. 17, 1908. I A. LAUBSGHER.

TUGK MARKER FOR SEWING MACHINES.

APPLICATION FILED DEC. 1905.

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A. LAUBSCHBR;

TUCK MARKER FOR SEWING MACHINES. APPLICATION FILED DEC. 9, 1905,

No. 882,255. PATENTED MAR. 17, 1908.

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No. 882,255. PATENTED MAR. 17, 1908.

A. LAUBSGHBR.

TUCK MARKER FOR SEWING MACHINES.

APPLICATIO FILED DEG. 9, 1905.

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A TTORNE Y rm: NORRIS PE'rERs cm, wasnmcwu, 54 c.

UNITED STATES PATENT OFFICE.

ALEXANDER LA'UBSCHER, OF BRIDGEPORT, CONNECTICUT, ASSlGNOR, BY MESNEASSIGN- MENTS, TO THE SINGER MAN UFAGTURING COMPANY, A CORPORATION OFNEW JERSEY.

-MARKER FOR SEWING-MACHINES.

Application filed December 9, 1905.

T 0 all whom it may concern:

Be it known that I, ALEXANDER LAUB SOHER, a citizen of the UnitedStates, residing at Bridgeport, in the county of Fairfield and State ofConnecticut, have invented a certain new and useful Improvement inTuck-Markers for Sewing-Machines, of which the following is a full,clear, and eXact de scription.

The special object of this invention is to provide a tuck-marker adaptedfor high speed sewing machines and for convenient use in connection withwhat is termed cluster tucking.

The invention comprises a gage adjustably mounted upon an adjustableslide, and provided with lips which coact with a marking finger, andmeans for effecting a positive control of the movements of the markingfinger, through its connection with the feed-actuating mechanism, so asto alternate the feed movement with the creasing action of the free end.of the marking linger. The marking finger is carried by a rock-shaftprovided with adjustable space-collars for positioningthe markingfinger, so that it will space the tucks comprising the clusters and a sowill space apart the series of clusters of tucks, without necessitatinga readjustment of the space-collars upon the rock-shaft.

In the accompanying drawings illustrating the invention, in the severalfigures of which like parts are similarly designated, Figure 1 is afront elevation with a portion of the overhanging arm and bed-plate, thelatter shown partly in section. Fig. 2 is an end elevation. Fig. 3 is aperspective view of the tuck marking and gaging mechanism, together witha portion of the bed-plate. Fig. 4 is a bottom plan view of the plate,showing the spring plate slidably connected with the gage late. Fig. 5is a perspective view of the sllde button for connecting the springplate with the gage plate. Fig. 6 is a front elevation of the feed-dogactuating mechanism.

The invention is herein illustrated in connection with the wellknownheeler & \Vil son sewing machine, commercially known as No. 61 (highspeed), and the description of the machine may, therefore, be limited tothe novel features comprising the present invention and the partsimmediately cooperating therewith, although it is to be understoodSpecification of Letters Patent.

Patented March 17, 1908.

Serial No. 291,089.

that the invention is not limited to this one embodiment thereof.

1 is the bed-plate of the sewing machine, 2 the overhanging arm, 3 themain or needle actuating shaft, 4 the lower or loop-taker driving shaft,5 the grooved driving pulley secured on main shaft 3, 6 the grooveddriven pulley secured on loop-taker driving shaft 4, and 7 the belt foroperatively connecting the upper main shaft and lower loop-taker drivingshaft. The pulleys 5 and 6, (shown in Fig. 2 in dotted lines only) areof the ratio of two to one, thus giving to the loop-taker 8 tworevolutions to one complete actuation of the needle carrying bar 9.

10 is the feed lift rock-shaft connected at its rear end, throughsuitable connections in cluding the lift rock-shaft connection 11 andarm 12, with an eccentric 13, (the latter shown in dotted lines only)secured to the main shaft 3, the forward end of the rock shaft 10 beingprovided with an arm 14, (see Fig. 6), the outer end of which carries ablock 15 which eoacts with a groove 16 formed in the feed bar 17 whichlatter is provided with the usual feed-dog 18. Thus, through the actionof the eccentric 13 and connections 11, 12, 14, 15, 16, and 17 the feedlift rock-shaft 10, transmits to the feed-dog 18 vertical movementscommon to the feeding mechanism commercially known as four-motion.

19 is the feed rock-shaft, connected at its rear end, through suitableconnections including the feed rock-shaft connection 20 and arm 21, withan eccentric 22, (the latter shown in Fig. 2 in dotted lines only) whichis secured to the main shaft 3, the forward end of said shaft 19 beingprovided with a link 23, one end of which is pivoted to the feed bar 17.Thus, through the action of the eccentric 22 and the connections 20, 21,23 and 17, the feed rook-shaft 19 transmits feed movements to thefeed-dog 18.

24 is the presser bar, to the lower end of which is secured the resserfoot 25, which latter eoacts with the feed-dog 18 to advance thematerial to the action of the stitch forming mechanism.

26 is a slide plate, mounted in suitable ways formed on the upper sideof the bedplate of the sewing machine and secured against accidentalmovement by screw 27. Upon the slide plate 26 is secured, by screw 28,(one only of which is shown, see Fig. 1,) a

rock-shaft bracket 29 provided with bearings 30 and 31 in which isjournaled the tuckmarker rock-shaft 32, which latter carries at itsfront end the tuck marking finger 33 held in position by the set screw34. The rockshaft 32 is provided with adjustable collars 35 and 36secured in the desired adjustment by the screws 37 and 38. Upon therockshaft 32 is adjustably secured, as by inch screw 39 and pinch joint39, an oscil ating lever 40, which extends downwardly through a slot 40in plate 26, and its opposite end provided with a slot 41 which coactswith a roller 42 carried by an arm 43 secured, by a screw 44, (see Fig.1), to the lift rock-shaft 10, thus transmitting from said rock-shaft10, rocking movements to the tuck marking finger 33 through theconnections 30, 31, 32, 33, 40, 42 and 43.

45 is a gage plate, frictionally held in operative position by thespring plate 46, the opposite ends 48 of which press against theunderside of the bed-plate 1, the plate 46 being secured by screws 47 tosaid gage plate. Lugs 49 on the gage plate 45, are so formed that theirfree ends willpass under the throatplate 50, the edge 51 of the plate 45abutting against the outer edge of the throat-plate 50.

52 is an adjustable gage provided at its opposite ends with upturnedlips or flanges 53 and 54, one of which, dependent upon the adjustment,coacts with a notch 55 formed in the underside of the free end of thetuck marking finger 33. The adjustable gage 52 has a longitudinal slot52 and is slidably mounted in the gage plate 45, and adjustablyconnected with an adjustable spring late 56, by means of a button 57,which is ormed with a lug or block 58 threaded for the reception of thescrews 59. These screws secure the spring plate 56 to the lug or block58, thus permitting the adjustable gage 52 as one member, and parts 56to 59 both inclusive as another member, to be adjusted together orindependently of each other relatively to the needle hole 60, the gageplate 45 being graduated or indexed to better facilitate the desiredchanges in the adjustment of the gage 52 (see Fig. 3).

61 is an adjustable plate provided with an edge gage 62 and springfinger 63, and secured to the slide plate 26 by the screw 64, said gage62 acting as a guide against which the folded edge of the materialtravels as it is fed to the action of the needle.

65 is a slot in the' plate 45, running parallel to slot 52.

By forming the two lips 53 and 54 at the opposite ends of the adjustablegage 52, the finger 33 may be adjusted to cooperate with either li Thusby the cooperation of the adjustab e finger-supporting rock-shaft andthe gage having lips or flanges at its opposite ends, the finger and lipmay be kept in register, and not only so, but, as already explained andas hereinafter more fully explained, the location of the individualtucks or plaits and the spacing apart of these individual tucks orplaits in clusters may be accordingly provided for. By slidably mountingthe adjustable gage 52 upon the gage late 45 in connection with a stop(lug or block 58), which in turn is slidably mounted in the gage plate45, the adjustable gage 52 may be adjusted a distance equal to thecombined lengths of the slots 52 and 65. This convenience of adjustmentavoids the use of a gage which under extreme widths of adj ustment wouldextend beyond the outer end of the gage plate 45, in which position itwould be likely to become bent, broken or damaged, due to its unguardedposition. The adjustable gage 52 is of such construction and so combinedwith the gage plate 45 that it is capable of an adjustment ofsubstantially twice its length.

By connecting the feed lift rock-shaft 10 and the tuck-marker rock-shaft32 it is in.- sured that the relative movements of the tuck-markerfinger and the feed-dogwill be in opposite directions, so that thefinger will be brought into contact with its coacting lip only at suchtime as the material is at rest.

The adjustment and operation of my device are as follovs. If it bedesired to produce an article a herein the tucks comprising the clusterare each one-half inch wide and one-half inch apart, and the clusters oftucks arranged one inch apart, the edge guide 62 would be adjustedone-half inch to the right of the needle to guide the free edge of'thefold comprising the tuck, the finger 33 and coacting lip one inch to theleft of the needle hole to determine the line of creasing for thesucceeding fold, and the collar 35 adjusted against the end of thehearing 30 (as shown in dotted lines). After the tucks forming thecluster have been laid and stitched, the marking finger 33 and coactinglip are adjusted one and one-half inches to the left of the needle holeor one-half inch farther to the left than u hen spacing the individualtucks forming the cluster, so that the creasing will be positioned tobring the first tuck one-half inch farther away from the last tuck ofthe previous cluster than the distance between the individual tucksforming the cluster. When adjusting to the second position or theposition for the formation of the first tuck forming the succeedingcluster, the collar 36 is to be adjusted against the end of the bearing31 (as shown in full lines, Fig. 3) or in such position on the shaft 32as will register the marking finger 33 for the second adjust ment. Fromthe foregoing it will be understood that to effect the two adjustmentsof the finger 33 it is simply necessary to loosen the screw 39 and movethe shaft 32 lengthwise in the direction required for the desiredadjustment until the collar controlling such adjustment rests againstthe end of the hearing with which it coacts, and again tighten the screw39.

In spacing tucks it is common to designate the space as that portionwhich is of a single thickness or from the seam of the last formed tuckto the free edge of the succeeding fold, and the foregoing explanationis made with that understanding.

As the fold forming the tuck is fed to the needle, the spring 63 acts tohold such fold down upon its underlying plate, thus preventing the twoplies forming the fold from separating or becoming loose, and insuringthat the fold will be stitched a uniform dis tance from its free edge.

What I claim is:

1. In a tuck-marker for sewing machines, a gage plate, an adjustablegage thereon, and an adjustable spring plate with which said adjustablegage is slidably connected for ef fecting independent adjustments of theadjustable gage and spring plate, in combination ith a marking finger,means to adjust it with relation to the adjustable and means forvibrating it.

2. In a tuck-marker for sewing machines, a slotted gage plate, a slottedadjustable gage and a slidable spring plate adjustably securedrelatively to said gage plate and adj usting gage, in combination ith amarking finger and means for actuating it.

3. In a tuck-marker for sewing machines, the combination of an edgegage, an adjust able gage, a marking finger, a shaft upon which saidfinger is mounted, a feed lift rockshaft and connections between saidfeed lift rock-shaft and marking finger for transmitting rockingmovements from said feed lift rock-shaft to said marking finger.

4. In a tuck-marker for sewing machines, the combination of an edgegage, a marking finger, an adjustable provided with upturned lips whichcoact with the marking finger, an adjustable spring plate, connectionsbetween said spring plate and adjustable gage, a graduated gage plate, afeed lift rockshaft, a marking finger rock-shaft, and connections,including a lever provided with a disengaging member, between saidfecd-lift rock-shaft and marking finger rock-shaft.

5. A tuck-marker for sewing machines, having a gage plate slottedlongitudinally, an adjustable gage flanged at its opposite ends, slottedlongitudinally and supported in said gage plate in alinement with itsslot, and a stop device connecting the said gage plate and gage, incombination with a tuck-marker finger, at rock-shaft therefor, and meansto vibrate said rock-shaft.

6. A tuck-marker for sewing machines,

havin a a e ilate slotted lon 'itudinall an D f! C D I adjustable gageflanged at its opposite ends, slotted longitudinally and supported insaid gage plate in alinement with its slot, and a spring stop deviceconnecting the said gage plate and gage, in combination with atuckmarker finger, a rock-shaft therefor, and means to vibrate saidrock-shaft.

7. A tuck-marker for sewing machines, having a gage plate slottedlongitudinally, a gage having opposite upturned end flanges and alongitudinal slot, and a movable stop connection for said plate andgage, in combination with a rock-shaft, hearings in which it islongitudinally adjustable, a marking finger fixed to said rock-shaft,and means to vibrate said rock-shaft, including an oscillating leverprojecting below the bed-plate of the sewing machines, and means forconnecting said lower end with the feed-operating shaft of the sewingmachine.

8. In a tuck-marker for sewing machines,

an edge-gage and an adjustable mounted upon opposite sides of the lineof stitch formation and adapted to beindependently adjusted, incombination with a marking fingcr, a feed lift rock-shaft andconnections be tween said rock-shaft and finger for transmitting rockingmovements from said rockshaft to said finger.

In testimony whereof I have hereunto set my hand this 8th day ofDecember A. D.

ALEXANDER LAUBSCHER. W'itnesses:

A. DONIIIEE, F. Y. OSTROM.

